Stearamid mordant.



UNITED STATES Patented August 9, 1904.

PATENT OFFICE.

ARMAND MULLER-JACOBS, OF RICHMOND HILL, NEW YORK.

STEARAIVHD MORDANT- SPECIFICATION forming part of Letters Patent No. 767,114,-dated August 9, 1904:.

Application filed December 18. 1903. Serial No. 185.712. (N0 specimens.)

To (all whmn it may concern.-

Be it known that I, ARMAND MULLER-JA- 00138, a citizen of the Swiss Republic, and a resident of Richmond Hill, county of Queens, and State of New York, have invented certain new and useful Improvements in Mordanting Dyes, of which the following is a specification.

My invention relates to dyeing and printing textile fibers or other fabrics; and it consists of the hereinafter-described new combination for use in the fixation of colors and dyestuffs upon the same in a novel manner, having the advantages of shortening the process of dyeing and printing and gaining at the same time considerably in gloss, brilliancy, durability, and finish in amost expeditious and economical way.

In making experiments I found that if stear-amid is dissolved in appropriate proportions in either soap or turkey-red-oil solutions and anilin colors of either basic or acid character are added to it a liquid is obtained which when applied to cotton, silk, wool, or other fabrics through a padding-machine or by other appropriate means or by printing upon it in the ordinary way the colors can be fixed upon them uniformly and lastingly by steaming or passing the same through hot calenders in both cases at a temperature of 105 to 110 centigrade. At this temperature the stear-amid melts and fixes mechanically the colors, thereby making it possible to dye mixed goods such, for instance, as silk and cottonin one operation without showing any difference in shade of either of the fibers. At the same time it imparts to the goods a certain gloss and finish which is an especial requisite for many of the articles.

In some cases a passage through a weak bath of a mineral or organic acid or through a weak bath of a soluble metal salt-as, for instance, sulfate of alumina may replace the heating, steaming, or calendering and besides may be considerably useful in fastening the colors.

Paper, wood, leather, and all other fibrous materials requiring high gloss and sizing can be treated in the same way.

In carrying out my invention I proceed as follows: I dissolve pure stear-amid in a boiling solution of neutral soap or of turkey-red oil, the former to be preferred. One part of either of these substances in a concentrated form is suflicient in combination with two to four parts of the stear-an1id to maintain the latter in solution or in an extremely-fine emulsion. When diluted with warm water so that the quantity of stear-amid amounts to five per cent, it is practically in the right state to receive the coloring-matter in shape of watery or alcoholic solutions.

Magenta, methyl violet, or brilliant green, for instance, as well as azo colors, acid colors, the eosins, &c., are all colors to be used in appropriate quantities for the production of the shades necessary for the impregnation of the goods.

For printing purposes thickening materials-such as starch, dextrine, gum-tragacanth, or the like-have to be added to the combined amid and color solution, and for dyeing leather I may simply apply such solu tions or emulsions, prepared as mentioned. above, by using a brush or other suitable means.

I may also use steer-amid in alcohol, benzene, tetrachlorid of carbon, aceton, 850., solutions with colors that are soluble in the corresponding solvent, and thereby obtain color solutions which can be applied on cotton, silk, and mixed goods or the like directly, the coloring-matter being fixed after evaporation of the solvent by the aid of stear-amid and subsequent heating or steaming processes.

What I claim as my invention is Stear-amid dissolved in an appropriate carrying solution, in combination with anilin colors as a mordant in coloring textile fibers or fabrics.

Signed at New York this 16th day of December, 1903.

ARMAND MULLER-JACOBS. 

